21st Century's Melatonin can help support a healthier sleep pattern for overall wellness and a healthy body. The body naturally releases melatonin in response to changes in light, with melatonin levels rising at night. It is in this way that melatonin helps promote sleep. It's Mother Nature's own sleep formula. Try it today and love it by morning! Gluten-free formula with no added sugar, yeast, preservatives, artificial flavors or colors.